How to get each user's API token? Edited

Is it possible to EASILY get each user's API token or have them retrieve it? For GH and Jenkins, it seems as simple as clicking a few links.

For context, I have Hubot set up on Hipchat and I have a lot of scripts with JIRA functionality. However, I want to authenticate each user when they use commands to access JIRA's API. For example, I do not want a user who is not in a JIRA project to be able to access it. Through basic authentication, this is not possible. It seems like Oauth does not allow this EASILY as the process to retrieve a JIRA API token is rather painful for a typical user.